I've actually purchased 3 of these electric bikes so far, and have been very happy with them. They seem to be a great value for the money.
correct replacement as pictured
Battery for Ecotric Rocket, Leopard Vortex and fat tire beach snow with newest battery
Still can't get shifter work correctly
The e-bike works great on our logging roads. Just a little noise coming from the chain bouncing on the frame once and awhile. A little felt tape was fixed